Multiple choice

Which of the following gases is responsible for ozone layer depletion?

  1. C.F.C

  2. CH4

  3. CO2

  4. CO
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A Correct answer
Explanation

Chlorofluorocarbons (CFCs) are synthetic compounds that release chlorine atoms when exposed to UV radiation in the stratosphere, which then catalyze the destruction of ozone molecules. Other gases listed are greenhouse gases or pollutants, but they do not directly deplete the ozone layer.

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